Joel David Hamkins
@joeldavidhamkins.bsky.social
Mathematics and Philosophy of the Infinite
Professor of Logic, University of Notre Dame
University of Oxford
#InfinitelyMore #BookOfInfinity #PanoramaOfLogic #PhilMaths
https://buymeacoffee.com/joeldavidhamkins
Professor of Logic, University of Notre Dame
University of Oxford
#InfinitelyMore #BookOfInfinity #PanoramaOfLogic #PhilMaths
https://buymeacoffee.com/joeldavidhamkins
More images of what I experienced tonight.
November 10, 2025 at 2:37 AM
More images of what I experienced tonight.
Tonight on campus at Notre Dame. I assure you that under that snow, the leaves are the most incredible majestic autumn colors!
November 10, 2025 at 12:48 AM
Tonight on campus at Notre Dame. I assure you that under that snow, the leaves are the most incredible majestic autumn colors!
Take my midterm exam!
This was yesterday's midterm exam for my Core Seminar in Philosophy, Science, and Mathematics, an undergraduate seminar here at Notre Dame. So far, we've read the works in this photo, in truth a fairly demanding load for (half) an undergraduate course.
This was yesterday's midterm exam for my Core Seminar in Philosophy, Science, and Mathematics, an undergraduate seminar here at Notre Dame. So far, we've read the works in this photo, in truth a fairly demanding load for (half) an undergraduate course.
November 8, 2025 at 12:47 AM
Take my midterm exam!
This was yesterday's midterm exam for my Core Seminar in Philosophy, Science, and Mathematics, an undergraduate seminar here at Notre Dame. So far, we've read the works in this photo, in truth a fairly demanding load for (half) an undergraduate course.
This was yesterday's midterm exam for my Core Seminar in Philosophy, Science, and Mathematics, an undergraduate seminar here at Notre Dame. So far, we've read the works in this photo, in truth a fairly demanding load for (half) an undergraduate course.
Midterm exam tomorrow. Wish my students success!
November 5, 2025 at 7:50 PM
Midterm exam tomorrow. Wish my students success!
I am truly honoted to be giving the DePrima lecture at Caltech in a few weeks. This distinguished annual lecture series aims to bring mathematical researchers to Caltech to give a talk for the undergraduate mathematical community.
November 4, 2025 at 2:37 AM
I am truly honoted to be giving the DePrima lecture at Caltech in a few weeks. This distinguished annual lecture series aims to bring mathematical researchers to Caltech to give a talk for the undergraduate mathematical community.
Here are some images I created for a forthcoming article by Barbara Montero and John Toner on the role of effort in expert action.
Victory at all costs--the role of effort in expert action.
Victory at all costs--the role of effort in expert action.
October 29, 2025 at 3:26 AM
Here are some images I created for a forthcoming article by Barbara Montero and John Toner on the role of effort in expert action.
Victory at all costs--the role of effort in expert action.
Victory at all costs--the role of effort in expert action.
This week's reading for my undergrad PhilSciMath core seminar.
October 27, 2025 at 1:25 AM
This week's reading for my undergrad PhilSciMath core seminar.
Hit 8000. Thank you subscribers!
www.infinitelymore.xyz #InfinitelyMore
Weekly content on the mathematics and philosophy of infinity.
www.infinitelymore.xyz #InfinitelyMore
Weekly content on the mathematics and philosophy of infinity.
October 17, 2025 at 12:48 AM
Hit 8000. Thank you subscribers!
www.infinitelymore.xyz #InfinitelyMore
Weekly content on the mathematics and philosophy of infinity.
www.infinitelymore.xyz #InfinitelyMore
Weekly content on the mathematics and philosophy of infinity.
Please enjoy my series of essays on the subtle distinction between the game-theoretic concepts of tactics and strategies.
www.infinitelymore.xyz/t/tactic #InfinitelyMore
www.infinitelymore.xyz/t/tactic #InfinitelyMore
October 16, 2025 at 12:44 PM
Please enjoy my series of essays on the subtle distinction between the game-theoretic concepts of tactics and strategies.
www.infinitelymore.xyz/t/tactic #InfinitelyMore
www.infinitelymore.xyz/t/tactic #InfinitelyMore
Take a ride on the transfinite subway. See my recent series of essays on the infinite subway paradox.
(Start at the oldest essay, at bottom, and move up.)
www.infinitelymore.xyz/t/infinite-s... #InfinitelyMore
(Start at the oldest essay, at bottom, and move up.)
www.infinitelymore.xyz/t/infinite-s... #InfinitelyMore
October 15, 2025 at 10:08 PM
Take a ride on the transfinite subway. See my recent series of essays on the infinite subway paradox.
(Start at the oldest essay, at bottom, and move up.)
www.infinitelymore.xyz/t/infinite-s... #InfinitelyMore
(Start at the oldest essay, at bottom, and move up.)
www.infinitelymore.xyz/t/infinite-s... #InfinitelyMore
This Friday, lunch seminar for the History and Philosophy of Science seminar.
October 14, 2025 at 9:17 PM
This Friday, lunch seminar for the History and Philosophy of Science seminar.
How many unit lengths span the interval [0,ω] in the surreal numbers? Find out at www.infinitelymore.xyz/p/surreal-ch.... #InfinitelyMore
October 14, 2025 at 12:40 PM
How many unit lengths span the interval [0,ω] in the surreal numbers? Find out at www.infinitelymore.xyz/p/surreal-ch.... #InfinitelyMore
This week's reading for my undergrad PhilSciMath core seminar. Looking forward to the discussion.
October 14, 2025 at 12:07 AM
This week's reading for my undergrad PhilSciMath core seminar. Looking forward to the discussion.
This week's reading for my undergrad PhilSciMath core seminar. Looking forward to the discussion.
October 4, 2025 at 11:29 PM
This week's reading for my undergrad PhilSciMath core seminar. Looking forward to the discussion.
Detail from student quiz on Lakatos, Proofs and Refutations.
October 3, 2025 at 2:17 PM
Detail from student quiz on Lakatos, Proofs and Refutations.
Find the whole series of essays on the infinite subway paradox here.
www.infinitelymore.xyz/t/infinite-s...
#InfinitelyMore #FrivolitiesOfTheGods
www.infinitelymore.xyz/t/infinite-s...
#InfinitelyMore #FrivolitiesOfTheGods
September 28, 2025 at 1:54 PM
Find the whole series of essays on the infinite subway paradox here.
www.infinitelymore.xyz/t/infinite-s...
#InfinitelyMore #FrivolitiesOfTheGods
www.infinitelymore.xyz/t/infinite-s...
#InfinitelyMore #FrivolitiesOfTheGods
Next week's reading for the core PhilSciMath seminar, two sessions.
September 26, 2025 at 2:50 PM
Next week's reading for the core PhilSciMath seminar, two sessions.
Will be interesting to compare with the previous reading from Tuesday:
September 25, 2025 at 2:50 PM
Will be interesting to compare with the previous reading from Tuesday:
Today's reading for the Core seminar on Philosophy, Science, & Mathematics. Lockhart's lament.
September 25, 2025 at 2:48 PM
Today's reading for the Core seminar on Philosophy, Science, & Mathematics. Lockhart's lament.
Realized the illustration actually says Fermat right out of view.
September 23, 2025 at 4:07 PM
Realized the illustration actually says Fermat right out of view.
Today's reading for the PhilSciMath seminar. Looking forward!
September 23, 2025 at 2:38 PM
Today's reading for the PhilSciMath seminar. Looking forward!
I realized that it has been 15 years now that I have been the top user on MathOverflow. What a great time its been! So much great mathematics learned and shared.
Here is the screen shot from 5 July 2010.
Here is the screen shot from 5 July 2010.
September 22, 2025 at 10:27 PM
I realized that it has been 15 years now that I have been the top user on MathOverflow. What a great time its been! So much great mathematics learned and shared.
Here is the screen shot from 5 July 2010.
Here is the screen shot from 5 July 2010.
Reading Lockhart's Lament in preparation for seminar next week and finding myself underlining nearly every single sentence. What good is that?
September 19, 2025 at 10:34 PM
Reading Lockhart's Lament in preparation for seminar next week and finding myself underlining nearly every single sentence. What good is that?
New post-doctoral position at Notre Dame
Core analytic/logic/phil math. philjobs.org/job/show/29622
2 year position, $75K annual salary plus $15K expense account. Please apply! (I am chairing this search.)
Core analytic/logic/phil math. philjobs.org/job/show/29622
2 year position, $75K annual salary plus $15K expense account. Please apply! (I am chairing this search.)
September 15, 2025 at 3:34 PM
New post-doctoral position at Notre Dame
Core analytic/logic/phil math. philjobs.org/job/show/29622
2 year position, $75K annual salary plus $15K expense account. Please apply! (I am chairing this search.)
Core analytic/logic/phil math. philjobs.org/job/show/29622
2 year position, $75K annual salary plus $15K expense account. Please apply! (I am chairing this search.)
I happened to notice that my name appears (at least once) in the Palgrave Companion to the Philosophy of Set Theory. How very nice!
August 31, 2025 at 5:51 AM
I happened to notice that my name appears (at least once) in the Palgrave Companion to the Philosophy of Set Theory. How very nice!